Create LibraryElement with SDK context for SDK sources.

pkg/analyzer/lib/task/model.dart

Index: pkg/analyzer/lib/task/model.dart
diff --git a/pkg/analyzer/lib/task/model.dart b/pkg/analyzer/lib/task/model.dart
index 0a457661e8283f191e7ce78fd6e46a0ac4fd6bcf..caf9c66b69404a1b1290dafddf55cc7e54d14cb8 100644
--- a/pkg/analyzer/lib/task/model.dart
+++ b/pkg/analyzer/lib/task/model.dart
@@ -91,7 +91,7 @@ abstract class AnalysisTask {
   /**
    * The context in which the task is to be performed.
    */
-  final AnalysisContext context;
+  final InternalAnalysisContext context;

[Brian Wilkerson, 2015/06/11 18:49:51]

Clients are expected to extend AnalysisTask, but InternalAnalysisContext isn't
part of the public API, so we can't use it here.

To be safe, I suppose the code in the task should be something like:

AnalysisContext owningContext = context;
if (context is InternalAnalysisContext) {
  owningContext = context.getContextFor(librarySource);
}
... new LibraryElementImpl.forNode(owningContext, ...);

[scheglov, 2015/06/11 18:56:07]

Done.

 
   /**
    * The target for which result values are being produced.